Where to Buy Mindstorms NXT Robots ?

What is the difference between all these sets?The Education NXT Base(9797) and Resource set(9648) are the ones that the club uses. They come with the same parts that the commercial version has, plus plastic bins to store the parts, rechargeable battery and chargers. It does not come with color sensors, nor does it come with the software license. But you can purchase those separately if you want.Which one should I get?You can purchase either the commercial or the educational set. The price is about the same. We prefer the educational one simply for the convenience of having the bins and the rechargeable battery.We also have the site license for the software, so we can install the software on all the laptops at our site.